The Sharia of Moses in the TORA
Part 2 - The 365 Prohibitions of the Tora
357 - HAVING INTERCOURSE WITH A WOMAN SUBJECT TO LEVIRATE MARRIAGE
Deuteronomy 25:5 -- “If brothers dwell together, and one of them dies and has no son, the widow of the dead man shall not be married to a stranger outside the family; her husband's brother shall go in to her, take her as his wife, and perform the duty of a husband's brother to her.”
Contravention of this commandment is punished by whipping for the woman and the man.